燃料比熱 的英文怎麼說
中文拼音 [ránliàobǐrè]
燃料比熱
英文
enthalpy of fuel-
Correlation between stoichiometrical ratio of air to fuel and its higher heating value
燃料理論空燃比與高位熱值之間的關系The research result proves the economic profit is remarkable. after the dispatching optimization of the thermoelectrical plant, we can save three to seven percent of the fuel than before
根據研究結果,本文的優化調度方法經濟效益顯著,在對熱電廠進行優化調度后,可比未進行優化的調度方案節約燃料2 % ~ 7 % 。3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant
對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等;改進了水冷壁布置使換熱效果更好,減少輻射換熱損失;改進對流段結構,更充分的利用爐膛出口煙氣余熱,提高熱效率;並且進行了煙氣阻力計算、熱效率計算和能量平衡測試,對改進后的稠油燃料和改進前進行了對比,燃燒狀況和熱效率有明顯改善。It ' s the first time to explore the combustion characteristics of lpg / diesel mixing fuel engine, and find that, with the change of load and rotation, the changing trend of the ignition delay period of e10 mixing fuel is almost as identical as that of the diesel, but that of e30 mixing fuel is very different. comparing with diesel, the combustion of e10 is improved slightly, but that of e30 greatly changes ; the maximum eruptive pressure decreases ; the maximum pressure increase rate decreases ; the highest releasing heat rate increases ; the highest combustion temperature falls ; the ignition delay period extends
結果表明: e10混合燃料與柴油的著火滯燃期隨負荷和轉速的變化趨勢基本一致; e30混合燃料與柴油則有所不同; eio混合燃料發動機的燃燒與純柴油相比,略有改善; e30混合燃料的燃燒特性發生明顯的變化,最高爆發壓力下降,最大壓力升高率減小,最大燃燒放熱率增大,最高燃燒溫度下降,滯燃期延長。Fuel cells have the following advantages over conventional generating systems : low environmental pollution ; highly efficient power generation ; diversity of fuels ; reusability of exhaust heat ; modularity ; faster installation. recent worldwide clean - air movements have greatly increased the importance of fuel cell development
和傳統發電方式相比,燃料電池發電具有以下幾個顯著的優點:良好的環境效益;發電效率高;可用燃料的多樣性;余熱的再利用;安裝簡便可實現模塊化操作運行。The other auto, an experimental suv, drove its electric motor with hydrogen fuel cells and emitted as waste only water purer than perrier and some heat
另一車款是實驗性的運動休旅車( suv ) ,這款車配備的電動馬達以氫燃料電池驅動,只排放出比沛綠雅礦泉水還純凈的廢水,還有些許熱能。With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics
熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高,內燃機雙源供暖(空調)系統的高發電效率僅限於100kw - 1000kw負荷范圍,供熱面積有限。對于大面積的商業園區、居民小區,燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖(空調)系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性,結合北京某一商業園區示範工程,進行了系統的計算與分析,得到了有效的數據與結論,在此基礎上,提出影響聯合循環雙源供暖(空調)系統經濟性的主要因素,並進行敏感性分析,得出有益的結論;最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解,並指出系統的優化方向。Sofie van damme, pr for saab belgium was keen to highlight saab ' s use of bio - fuel
紳寶比利時的公關,索菲范丹,熱心的指出,紳寶使用生化燃料的用途。The properties of the membranes such as proton conductivity, water uptake, swelling degree and thermal stability were measured. results show that the sulfonated sbs membranes had good proton conductivity, at the same time, the water uptake and the swelling degree could meet the need of fuel cell
通過對不同磺化度的質子交換膜的電性能、吸水率、溶脹率以及熱穩定性等性能進行了研究,表明磺化sbs膜具有了比較好的質子傳導能力,吸水率與溶脹率也能滿足燃料電池的工作需求。The thermal conductivity of aluminum plate has a good thermal conductivity, so that the heating system is fast and heat distribution is uni tally friendly. heating rate is 4. 5 times higher than the traditional, so as to achieve rapid heating effect
科學設計的導熱鋁板,安全牢固的嵌入萬能模板中,結實、平整且能夠承載,發揮其高效的傳導性能、環保性能,比傳統的混凝土施工方式節省40 %以上的燃料費,供熱效率在200 %以上。The maximum heating rate of absorber is o. skw. ? h / ? inside experiment fuel rod is much lower than that outside experiment device. influence of absorber movement on thermal neutron flux decreases, as radial distance between absorber and measuring point increases
給出了硼不銹鋼和銀分別做為吸收體的兩種方案的計算結果,即有效增殖因子keff 、中子通量密度分佈、燃料棒功率、吸收體組分及其發熱,並進行了分析、比較,為瞬態試驗裝置的設計提供了參數。In order to realize the optimum control of the temperature in the billet reheating furnace, the fuzzy control and expert control of the fuel flow, the optimization extreme of the air / fuel ratio, and the fuzzy pi control of the pressures in furnace are discussed
摘要為了實現鋼坯加熱爐爐溫的優化控制,研究了燃料流量的模糊專家控制,空燃比的極值尋優以及爐膛壓力的模糊pi控制策略。Compared with other general cfd software, the numerical modeling software of combustion process improved by the author of this paper has following features : ( 1 ) it can adjust the corresponding parameters and manipulating methods according to furnace architecture, operational parameters and fuels etc. ; ( 2 ) it can arrange the nodes of grid flexibly and also make special calculation to certain nodes, which cannot be accomplished by the general commercial software ; ( 3 ) in the boundary ( water - cooled wall ) condition processing, the third boundary condition is selected for the temperature calculating, linking the combustion process inside the furnace with the flow and heat exchange of water inside the water - cooled wall, so the heat absorbing and the influence of the water - cooled wall to combustion process and heat transfer of furnace are explicitly explained
與其它通用的cfd軟體相比,經論文作者所改進的燃燒過程數值模擬軟體的特點在於: ( 1 )能夠結合爐子結構、運行參數及燃料等,調整模型中相應的參數及處理方法; ( 2 )可以靈活的安排網格節點,對某些節點進行特殊處理; ( 3 )在邊界(水冷壁)條件的處理上,溫度選用了第三類邊界條件,把爐內燃燒過程和水冷壁內工質的流動和換熱聯系了起來,使得水冷壁內的吸熱情況對爐內的燃燒和結渣的影響充分體現出來。In comparison to the power of diesel, that of e40 engine obviously decreases and its hot starting works difficultly. through comprehensive analysis, the mixing optimum ratio of lpg is defined as 30 %. 3
E40混合燃料發動機的動力性與柴油機相比有顯著下降,同時熱起動困難,通過綜合分析,確定lpg柴油混合燃料的最佳質量摻混比為30 。The simulations results show that the average combustion temperature is much lower in fuel - rich state and little higher in oxygen - rich state near the best o / f ratio. by extending the post - chamber length the oxidizing gas and the fuel pyrolytic gas can burn completely and the average combustion temperature can be prominently increased. the fuel - rich recirculation zone close to the head of combustion chamber is very important for the combustion
計算結果分析表明:發動機在富燃狀態下平均燃燒溫度偏低,在接近理想配比的富氧狀態下平均燃燒溫度有所提高;加長補燃室可以大幅度提高發動機的平均燃燒溫度,並促進氧化劑氣體和熱解氣體的充分燃燒;燃燒室頭部的富燃迴流區對發動機的燃燒非常重要,去掉燃燒室頭部突擴段后,氧化劑氣體和燃料熱解氣體不能充分燃燒,發動機的平均燃燒溫度大幅下降。First, based on reading lots of references biomass gasification technology is discussed in detail including the basic principle of biomass gasification, categories and working principle of biomass gasification equipment and ancillary system of biomass gasification in this paper. second, performance calculation modules of sub - systems such as gas turbine, heat recovery steam generator, steam turbine and dryer in the bigcc system are built, especially, performance calculation modules of gas turbine fueling biomass fuel gas based on variable specific heat and biomass dryer are built. in the mean time, program of performance calculation modules for sub - systems is developed using delphi 6. 0
首先,本文在閱讀大量文獻基礎上對生物質氣化技術進行了詳細的闡述,主要包括:生物質氣化基本原理、生物質氣化設備的種類和工作原理以及生物質氣化的附屬系統;其次,建立了bigcc系統中各個子系統燃氣輪機、余熱鍋爐、蒸汽輪機、乾燥器等的性能計算模型,特別建立了基於變比熱的燒生物質燃料氣的燃氣輪機性能計算模型和生物質乾燥器的性能計算模型,並用delphi6The regulator holds a constant air - fuel ratio from cold start - up through hot air operation
調節閥能夠保證從冷啟動到預熱空氣一直保持恆定的空氣-燃料比例。The intermediate - temperature sofc ( solid oxide fuel cell ) ’ s electrolyte with perovskite - type lsgm ( la _ ( 0. 9 ) sr _ ( 0. 1 ) ga _ ( 0. 8 ) mg _ ( 0. 2 ) o _ ( 3 - ) ) was synthesized using advanced pechini method and solidification method. the thermal and electrical properties of the sintered samples ( synthesized by two different methods ) were measured and compared by thermal expansion and ac impedance spectroscopy ; the phase transformation process and inner structure were measured and compared by xrd, dta - tg and ac impedance spectroscopy. the research results show that the electrolyte synthesized by advanced pechini method has several advantages, such as fine pre - powders, low sintering temperature, reduced or eliminated impurity phases and high conductivity etc. so, the apm is ideal method to synthesize lsgm
採用改進的檸檬酸法(以檸檬酸和edta乙二氨四乙酸為復合絡和劑,檸檬酸為燃料)和固相法分別制備了具有鈣鈦礦結構的中溫固體氧化物燃料電池的電解質材料lsgm ( la _ ( 0 . 9 ) sr _ ( 0 . 1 ) ga _ ( 0 . 8 ) mg _ ( 0 . 2 ) o _ ( 3 - ) ) ,用差熱?熱重分析( dta / tg ) 、 x光衍射分析( xrd ) 、交流阻抗譜技術( ac - impedancespectra ) 、比表面積分析( bet )和燒結收縮率曲線等手段對產物的熱分解過程、物相轉變和內部結構等進行了表徵,並對由這些粉體燒結而成的固體氧化物燃料電池的電解質材料的電導率進行了檢測。Characters including : fuel atomization device replaced by gas sprayer, gas supply controlled by gas flux valve ; separate fuel supply from combustion - supporting air, regulate air supply through changing the electioneering voltage to make the fully burning and improve efficiency and reduce fuel consume ; arts and crafts are simple, the modification of the oil heater ' s configuration is little and the heating power is not below the oil heater ' s level ; because of falling the voltage of electioneering, greatly descend the noise of the sample machine compared with the original
其特點是:以燃氣噴頭替代原機燃油霧化裝置;以燃氣流量控制閥控制燃氣的供給;燃氣的供給與助燃空氣的供給相分離;通過改變主電機的電壓,調整空氣的供給量,使燃燒更加充分完全,並進一步提高了熱效率,降低了燃料消耗;工藝簡單,對原機型改動較小;樣機的加熱功率不小於原機型水平;此外,由於主電機電壓的降低,使樣機的整機噪聲比原機大大下降。In this paper, the indicator diagrams of a diesel - lpg dual fuel engine and an original diesel engine are measured by a cb366 combustion analyzer. comparative calculations and analyses on combustion characteristics of the dual fuel engine and the original diesel engine are put up in detail. some results about the combustion charateristics of dual fuel engines are obtained
利用cb366燃燒分析儀測錄了柴油?液化石油氣雙燃料發動機和原柴油機在不同工況下的示功圖,進行了放熱規律的計算和對比分析,得出了有關雙燃料發動機燃燒特性的結論。分享友人